Improvement in the construction of chairs



UNITED STATES PATENT OEricEo :DANIEL E. TEAL, or NEw LISBON, NEW YORK.

IMPROVEMENT IN THI; CONSTRUCTION OF CHAIRS. I

To ctZZpwI/om it may concern: Y

Be it known that I, DANIEL E. TEAL, of New Lisbon,in the county of Otsego, and in the State of New York, have, invented certain new and useful Improvements in Chairs; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, makinga part of this'specification, in which-- lFigure l is a side elevation of a chair-seat, showing the means` employed for pivoting thereto thescrew. Fig. 2 is a plan View of the lower side of the same, and Fig. 3 is a crosssection on the line w of Fig. 2.

Letters of likename and kind refer o like parts in each of the figures.

My invention is an improvement in tilting swivel-chairs; and it Yconsists in the means employed for pivoting theseat to or upon the upper end of the screw, and for holding said seat in ahorizontal position, except when purposely tilted backward, ,as is hereinafter shown.

In `the annexed drawings, A represents a screw having its upper end secured to or wit-liin the center longitudinally of a short roller,

B,which is placed at a right angle to said y `screw and serves as a pivot upon which it swings. v `ings C, formed within a plate of sheet metal,

rIhe ends of the `roller B rest in bearc, having its ends bent inward in parallel lines, as shown in Fig. 2, and being secured to or `upon' the lower side of a chair-seat, D, by

means of two rods, E, one of whichis coiled once around the outside of the opening with in each bearing, and soldered or otherwise attached` thereto, andfromthence, extending inward and across, has its ends embedded within said chair-bottom. The screw A extends above the roller B sufficiently to bring it intoengage- Inentwith the edge of the plate c and prevent the seat from tilting forward beyond a horizontal line without interfering in the least with itsV free motion to the rear. In order to cause the seat to return to position when tilted rear Specification forming part of Letters Patent No. l 05,5 I7, dated July 19,1870.

ward, two spiral springs, F, formed of one piece of wire, are coiled around the ends of the roller B, their inner or connected ends passing forward around the end of the screw, while their outer ends, extending rearward, rest within suitable notches formed in the lower edge of the plate c, as shown in Figs. 2 and 3, by which means an elastic upward pressure is exerted upon the rear side of the seat sufficient to always hold the same in position, except when purposely moved therefrom. Although this construction ofthe bearings and the means 'employed for attaching the same to the seat are believed to be most desirable, other equivalent deviees might be employed for effecting the same object without departing from the spirit of my invention. I

The especial advantages possessed by these devices are simplicity of construction coupled with a comparatively small cost.

Having thus fully set forth the nature and .merits of my invention, what I claim as new is- 1. The devices employed for pivoting the seat D to or upon the` screw A, consisting of the roller B, resting within the bearingsfC, attached to the lower side of said seat by means- GEO. S. PEINDLE, EDM.V F. BROWN. 

